SHORT COUPLING FOR ROBOT SMART CAR WHEEL LENGTH: 18MM DIA. 4MM

The 4MM Short Coupling for Robot Smart Car Wheel is a compact mechanical connector designed to link 4mm motor shafts with robot wheels. With a total length of 18mm, this coupling is ideal for space-constrained applications where a low-profile, stable connection is required. Crafted from high-quality aluminum alloy, this coupling ensures long-lasting durability and excellent resistance to wear and corrosion. Dual set screws allow for a firm grip on the motor shaft, preventing slipping during rotation and ensuring smooth, reliable motion. It’s a perfect choice for educational robots, smart car kits, and other miniature robotics projects. Specifications: Shaft Diameter: 4mm Coupling Length: 18mm Material: Aluminum alloy Fixing Method: Dual set screws (included) Inner Diameter (bore): 4mm Outer Diameter: ~8–10mm (varies by design) Color: Silver or Black (based on availability) Weight: ~6g